Hi @rudtek
I believe you can do it like this:
function my_post_object_query( $args, $field, $post_id ) {
// Get the allowed post IDs from the relationship field
$allowed_ids = get_field('event_speakers', $post_id, false);
// Restrict the returned posts
$args['post__in'] = $allowed_ids;
// return
return $args;
}
// filter for a specific field based on it's name
add_filter('acf/fields/post_object/query/name=session_speaker', 'my_post_object_query', 10, 3);
add_filter('acf/fields/post_object/query/name=session_moderator', 'my_post_object_query', 10, 3);
add_filter('acf/fields/post_object/query/name=session_emcee', 'my_post_object_query', 10, 3);
add_filter('acf/fields/post_object/query/name=session_host', 'my_post_object_query', 10, 3);
Please keep in mind that you need to save the post first after changing the speakers field.
I hope this helps 🙂
